Features of Mechanisms of Electrical Conductivity in Semiconductive Solid Solution Lu1 – xScxNiSb


  • V.V. Romaka Technische Universit¨at Dresden
  • V.A. Romaka Lviv Polytechnic National University
  • Y.V. Stadnyk Ivan Franko National University of Lviv
  • L.P. Romaka Ivan Franko National University of Lviv
  • P.Y. Demchenko Ivan Franko National University of Lviv
  • V.Z. Pashkevych Lviv Polytechnic National University
  • A.M. Horyn Ivan Franko National University of Lviv




electrical conductivity, thermopower coefficient, Fermi level, semiconductor


A comprehensive study of the crystal and electronic structures, thermodynamic, electrokinetic, energy, and magnetic properties of the semiconductive solid solution Lu1-xScxNiSb, x = 0 – 0.10, revealed the possibility of doping Sc atoms of different crystallographic sites depending on their concentration. This leads to the generation of structural defects of donor and/or acceptor nature and the appearance of the corresponding energy levels (bands) in the band gap єg. The ratio of ionized donors and acceptors (degree of compensation) determines the position of the Fermi level єF in Lu1-xScxNiSb. The dependence of the rate of generation of energy levels and the position of the Fermi level єF on the impurity concentration Sc, which determines the mechanism of electrical conductivity of Lu1-xScxNiSb, is established. The investigated Lu1-xScxNiSb solid solution is a promising thermoelectric material.


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How to Cite

Romaka, V., Romaka, V., Stadnyk, Y., Romaka, L., Demchenko, P., Pashkevych, V., & Horyn, A. (2022). Features of Mechanisms of Electrical Conductivity in Semiconductive Solid Solution Lu1 – xScxNiSb. Ukrainian Journal of Physics, 67(5), 370. https://doi.org/10.15407/ujpe67.5.370



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